It's honestly a trainable quality, much like all of lifting. When I initially started holding my breath, I would be able to get through a handful of reps before I "lost my breath". In reality, all I was doing was succumbing to discomfort. As I made a stronger effort to hold my breath, I learned that there were really many phases to "losing breath", and that you have to really just get good at enduring the misery.
You'll start to feel tightness in your stomach at first, then it'll rise up into your throat, then you'll feel your heart beating really fast, your head will swell up, you'll get light headed, and then your vision will start blurring/eyes watering. At that point, you probably have another rep.
Some of the tricks I learned are that you can actually still breathe IN a little bit at the top, which will placate the need to "breathe" during the rep AND get you even more tight. You also want to "swallow" the breath/air you take.
This is one of my longer efforts where you can see me trying this approach. Moving fast is of course very helpful too.